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Kazutoshi Akiyama

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  • Matsubara, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Production of an azine dye having excellent heat- and light-resistance
    • Patent number 5,281,709
    • Issue date Jan 25, 1994
    • Orient Chemical Industries, Ltd.
    • Kazutoshi Akiyama
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Aqueous ink composition
    • Patent number 5,034,058
    • Issue date Jul 23, 1991
    • Orient Chemical Industries, Ltd.
    • Kazutoshi Akiyama
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Aqueous ink composition
    • Patent number 4,666,519
    • Issue date May 19, 1987
    • Orient Chemical Industries, Ltd.
    • Kazutoshi Akiyama
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Coloring composition
    • Patent number 4,649,174
    • Issue date Mar 10, 1987
    • Orient Chemical Industries, Ltd.
    • Kazutoshi Akiyama
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...